Well, I whipped together an idea with an inductor on the woofer to tame the rising mids, and a second order on the tweeter corresponding to where the woofer rolls off and we'll see...
Actually Nelson, (not Pass!) the guy making this, has put the crossover together and says its OK. I haven't heard it yet. I hope he posts here with some pics soon...

If you guys remember, we designed these BBBIB's for a youthful Mr. Punkrockr a while back who wanted lots of bass. Mr. N-Brock is about the same age as Punkrockr, so finally the design has accomplished its intended goal.. Rock On!

recommended crossover of tweeter is 5k
Well, there are various recommended frequencies. One being 3.5k but from talking to various people experienced with slot tweeters, and other so-called super tweeters, (which is only in the PA sense because they really don't even make it to 20k) they recommend crossing over pretty high- like 5k.

Which is worse, a tweeter straining to go low or a whizzer cone woofer trying to go high? In this case I made my choice, seems a tweeter under stress would be the more harsh and annoying possibility... I also considered the Eminence Beta without the whizzer with a horn driver and waveguide but the costs started to mount up, and this is supposed to be a fun speaker that high school people can afford to build ( especially if they stumble on some plywood! )